发育温度对行为可塑性有性别特异性影响

IF 2.9 2区 生物学 Q2 BIOLOGY
Madeleine de Jong, David G. Chapple, Bob B.M. Wong
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引用次数: 0

摘要

随着气候变化的进展,物种的持久性将受到适应气温上升的行为能力的影响。发育早期所经历的热环境对表型有永久性的影响。然而,在很大程度上尚未探索这些影响是否随后影响行为可塑性,以应对早期发育时期后经历的热环境。为了解决这个问题,当石龙子长到4到6周龄时,我们在三种温度处理下孵化精致的石龙子卵(lamproolis delicata),并在温和和炎热的环境中量化活动、微栖息地选择和分散。孵育和热环境的影响,以及它们的相互作用,是性别和行为特异性的。孵育温度的差异对热环境反应的行为变化影响最大的是活动,其次是分散,对微生境的利用没有影响。男性是最具可塑性的性别。热孵育的雄虫活动增加最多,冷孵育的雄虫在热环境中分散得更远。与其他雄性孵化组相比,轻度孵化的雄性也最分散。相比之下,雌性在孵育处理或热环境之间通常没有差异。这些结果强调了发育温度对行为可塑性的性别依赖效应,表明气候变化可能对雄性和雌性产生不同的影响。如果这些影响对生存产生性别特异性的影响,则可能对人口增长和气候变化的动态产生影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Developmental temperature has sex-specific effects on behavioural plasticity
As climate change progresses, species persistence will be influenced by the ability to adjust behaviour in response to rising temperatures. Thermal environments experienced in early development can have permanent effects on phenotype. However, it is largely unexplored whether these effects subsequently impact behavioural plasticity in response to thermal environments experienced after this early developmental period. To address this, we incubated delicate skink eggs (Lampropholis delicata) across three temperature treatments and quantified activity, microhabitat choice, and dispersal in mild and hot environments when skinks reached four to six weeks of age. Effects of incubation and thermal environment, as well as their interaction, were sex- and behaviour-specific. Differences in incubation temperature affected behavioural variation in response to thermal environment most strongly for activity, followed by dispersal, with no effect on microhabitat use. Males were the most plastic sex. Hot-incubated males had the greatest increase in activity and cool-incubated males dispersed further in a hot environment. Mild-incubated males were also the most dispersive compared to other male incubation groups. In contrast, females did not differ as often between incubation treatments or thermal environments. These results highlight sex-dependent effects of developmental temperature on behavioural plasticity, indicating climate change may impact males and females differently. If these effects result in sex-specific effects on survival, there may be implications for population growth and dynamics with a changing climate.
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来源期刊
Journal of thermal biology
Journal of thermal biology 生物-动物学
CiteScore
5.30
自引率
7.40%
发文量
196
审稿时长
14.5 weeks
期刊介绍: The Journal of Thermal Biology publishes articles that advance our knowledge on the ways and mechanisms through which temperature affects man and animals. This includes studies of their responses to these effects and on the ecological consequences. Directly relevant to this theme are: • The mechanisms of thermal limitation, heat and cold injury, and the resistance of organisms to extremes of temperature • The mechanisms involved in acclimation, acclimatization and evolutionary adaptation to temperature • Mechanisms underlying the patterns of hibernation, torpor, dormancy, aestivation and diapause • Effects of temperature on reproduction and development, growth, ageing and life-span • Studies on modelling heat transfer between organisms and their environment • The contributions of temperature to effects of climate change on animal species and man • Studies of conservation biology and physiology related to temperature • Behavioural and physiological regulation of body temperature including its pathophysiology and fever • Medical applications of hypo- and hyperthermia Article types: • Original articles • Review articles
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